Ambient Temperature Sensor Inspection [Full-Auto Air Conditioner]

2010 Mazda 5 Sport, 2.3 L, StandardSECTION Ambient Temperature Sensor Inspection [Full-Auto Air Conditioner]
WARNING: This page is about a different car, the 2008 Mazda 5. However, it is still accessible from the selected car via links, so may be relevant.
  1. Measure the temperature around the ambient temperature sensor and measure the resistance between the ambient temperature sensor terminal.
    • If the characteristics of the ambient temperature sensor are not as shown in the graph, replace the ambient temperature sensor.
      Fig 1: Ambient Temperature Sensor Resistance And Temperature Graph
      G05543351Courtesy of MAZDA MOTORS CORP.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.